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Chromatography Syringes

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Chromatography is the science of separating liquid solutions or gas compounds into individual components for purity or particle analysis. Chromatograph lab and scientific supplies include chromatography syringes with needles, which scientists use to draw solutions from glass vials or tubes and insert them into the ports of chromatographs for separation and analysis. Staples® carries a variety of syringes for use in labs in schools, medical facilities, and industry.

Chromatograph Syringes for Different Machines and Uses
Chromatography that uses syringes with needles include gas chromatographs and high-performance liquid chromatographs (HPLCs). Liquid samples injected into gas chromatographs with chromatography syringes vaporize for analysis, while liquid samples injected into HPLCs flow directly into a pump that pressurizes the samples into a container tube for analysis. Both contain digital detectors for identifying sample components for final analysis. Gas samples for HPLCs using chromatography syringes must first be converted into a liquid or gel for analysis.

The two basic types of syringes include manual syringes and autosampler syringes. Scientists using manual syringes for standalone gas chromatographs or HPLCs often work on specialized projects in smaller, dedicated labs. When working with gaseous samples, they’ll use a manual gas tight syringe to maintain vapor equilibrium when inserting the syringe into the chromatograph port.

Chromatography Syringes for Autosamplers
Many standard autosamplers consist of six-port injection valves working in tandem with a rotating carousel that aligns sample containers with a syringe port angled precisely and sealed tightly so it can be loaded and dispensed without any sample loss. The needle for autosampler syringes inserts into a loading inlet and then into the injection valves in a loop system normally controlled by an automated motor drive.

Other systems consist of robotic swing arms that select samples for load and insertion and move them to the needle. Autosampler syringes can withstand intense pressure loads at the injection point, since various internal chromatography columns accept different samples at different flow rates in a highly pressurized environment. The syringes work with specific valve configurations to maintain the proper pressure balance at the insertion point.

What Are the Components of Chromatography Syringes?
Syringes consist of a barrel, either borosilicate glass or lab-grade clarified plastic, with demarcations normally in micro- or milliliters. Chromatography syringes have precision engineered plungers, normally polytetrafluoroethylene or titanium-nickel, that depress or extend inside the barrel down to the discharge orifice, called the termination. Some glass syringes come with fixed needles cemented into place, while others, including autosampler syringes, consist of knurled tightening knobs at the termination to accept the ferrules of needles of different gauges and points.

Are Chromatography Syringes Temperature-Sensitive?
Many gas chromatographs have an injection system that heats the sample as the syringe needle is injected into the port. Certain syringes can withstand temperature settings of up to 120 degrees Fahrenheit, well within gas vaporization ranges for most sample solutions.

How Reliable Are Manual Gas Tight Chromatography Syringes?
Syringes for collecting and injecting gas compound samples are precision engineered and calibrated to exacting specifications, to maintain accurate volume retention consistently. These gas tight syringes also maintain their accuracy under pressure loads, starting at up to 200 psi (pounds per square inch). High-quality gas-tight syringes meet the laboratory standards set by the National Institute of Standards and Technology, an agency of the United States Department of Commerce.
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Sge Autosampler Syringe Fixed Needle
Item: 1603368 / Model : SGE 003987 EA
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  • Product Type: Autosampler Syringe
  • Length: 50mm
  • Capacity: 25 ul
80.99 $80.99
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Sge Microliter Syringe
Item: 1603369 / Model : SGE 002108 EA
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  • Product Type: Microliter syringe
  • Length: 50mm
  • Capacity: 10 ul
57.99 $57.99
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Hamilton Gastight Syringe without Needle, 5 ml
Item: 1602385 / Model : HAM 81520 EA
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  • Gastight syringe without needle
  • Made of borosilicate glass
  • 5-milliliter capacity
52.89 $52.89
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Air-Tite Products Co. Luer Slip Sterile Syringe, 100/Pack
Item: 1603340 / Model : AIR A10 PK
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  • Product Type: Lure Slip Sterile Syringe
  • Made of plastic
  • Positive safety stop prevents accidental spills
24.99 $24.99
100/Pack
Hamilton Gastight Syringe with Needle 1ml (81317EA)
Item: 1602387 / Model : HAM 81317 EA
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  • Product Type: Gastight Syringe with Needle
  • Needle Length: 2"
  • Capacity: 1 ml
51.99 $51.99
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Ace Glass Hypodermic Needle, 5/Pack
Item: 1603151 / Model : ACE 5936-44 PK
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  • Product Type: Needle
  • Length: 50mm
  • Made of stainless steel
129.99 $129.99
5/Pack
Air-Tite Products Co. Luer Lock Sterile Syringe, 50/Pack
Item: 1603339 / Model : AIR AL30 PK
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  • Product Type: Lure Lock Sterile Syringe
  • Made of plastic
  • Positive safety stop prevents accidental spills
54.99 $54.99
50/Pack
Hamilton Kel-F Hub Luer Lock Needle
Item: 1602383 / Model : HAM 90114 EA
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  • Product type: Kel-F Hub needle
  • Length: 2"
  • Made of stainless steel
72.99 $72.99
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Hamilton Cemented Needle Syringe, 10 ul, 6/Pack
Item: 1602389 / Model : HAM 80366 PK
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  • Product Type: Cemented Needle Syringe
  • Length: 2"
  • Capacity: 10 ul
97.59 $97.59
6/Pack
Hamilton Cemented Needle Syringe, 10 ul, 26s gauge
Item: 1602390 / Model : HAM 80307 EA
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  • Product Type: Cemented needle syringe
  • Length: 2"
  • Capacity: 10 ul
57.99 $57.99
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